Dayid maxwell



(No Model.)

D.-MAXWELL. Friction Dump for Horse Rakes.

No. 240,321. Patented A pfil 19,1331.

TlilnessesQ I Inventor:

N. PETERS. PMOTO-UTHOGRAPHER. WASHXHGYON. D. C.

UNITED STATES PATENT OFFICE.

DAVID MAXWELL, OF PARIS, ONTARIO, CANADA.

FRICTION-DUMP FOR HORSE-RAKES.

SPECIFICATION forming part of Letters Patent No. 240,321, dated April19, 1881.

Application filed September 10, 1880. (No model.)

To all whom it mag concern:

Be it known that 'I, DAVID MAXWELL, of the town of Paris, in the countyof Brant, in the Province of Ontario, Gan ada, manufacturer ofagricultural implements, have invented certain new and usefulImprovementsin Friction- Dumps for Horse-Rakes, of which the followingis a specification.

My invention relates to that class of horse hay-rakes in whichfriction-clutches are employed to engage with clutching-plates on thehubs of the wheels to dump the load; and it consists in certainimprovements in the construction and arrangementof the parts, ashereinafter more fully set forth, and pointed out in the claim.

Figurel is a side View of my improvement, shown applied to' one wheel ofa horse-rake; Fig. 2, a vertical section of the same, and Fig. 3 adetail of the clutch-lever.

As the general construction of horse-rakes is now Well understood, it isnot necessary, for the purpose of this specification, to illustrate moreof the machine than that part to which the friction-dump is attached,nor will it be necessary to explain the ordinary operation of themachine. A Suffice it to say that A is the metallic hub of one of thewheels of the machine; B, a cone-shaped projection cast upon the insideof the hub, as shown. C is the steel axle, and D the wooden axle, towhich the raketeeth are attached. The conically-dished disk E has alarge center hole, through which the axle O passes. This hole fitsloosely over a boss, F, on the hub A. The forked lever G is suitablypivoted upon the axle D, either directly or to iron straps H, bolted tothe said axle, as shown. This lever G is provided with pins g, one atthe end of each fork, to fit into holes or sockets a, made in the diskE, as shown. The upper end of the lever G is connected by a rod, in theusual way, to the foot or hand lever, situated, as usual, within reachof the driver.

When the forked ends of the lever G are pressed against the disk E itsconical face is forced against the face of the cone-shaped projection B,which action causes the axle D to revolve, thereby raising therake-teeth till the pressure is removed from the lever Gr, when theyimmediately fall back, the friction caused by the contact of the twoconical faces being insufficient to hold the rake-teeth up without thepressure mentioned.

It will be perceived that the metallic hub A, with its projection B,beveled at its outer end, and boss F, are all cast in one piece, andthat the boss F serves the double purpose of supporting and guiding thedished disk E, forming one halfof the clutch in its movements over theother half, B, of the clutch. and also preserves the concentric relationof the halfclutch E with the other half, B, of the clutch.

I am aware that cone-shaped clutches sliding loosely on the axle of ahorse-rake, and operated by the driver, bymeans of a system of levers,to engage with the inner ends of the hubs of the wheels of a horse-rake,in order to raise the teeth and dump the load, have heretofore beenemployed, and I therefore lay, no claim, broadly, to such construction,my invention being confined to the details of construction whereby thehalf-clutch is supported and guided in its movements by a metallic bossor sleeve cast in one piece with the hub andthe concentric relation ofthe half-clutches preserved thereby.

What'l claim as my invention is- The combination, with the metallic hubA, provided with the projection B, beveled at its outer end, and boss F,all cast in one piece, of the lever G, bifurcated at its lower end andprovided with the pins 9, and conicallydished disk E, having sockets a,and adapted to be supported and guided in its movements by the boss,substantially as described, and for the purpose set forth.

DAVID MAXWELL.

In presence of- DONALD O. BIDoUT, OHAs. W. BALDWIN.

